Paul McCartney has revived his 1971 solo classic "Heart Of The Country" for the new online ad for Britain's Linda McCartney frozen vegetarian food line. The 40-second video features a newly recorded 2012 acoustic and harmonica version of the Ram classic, produced by Mark Ronson over animated art depicting a rural farm scene.

Fans are buzzing over the track, which may be a taster for McCartney's long overdue studio album. Some die-hards are taking exception over McCartney slightly tweaking the song's melody -- not to mention the state of McCartney's vocals, which are far rougher that the high tenor featured in the 1971 version.